deposito's in het oosten van continenten
Azië
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Japan, Oman
Afrika
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
South Africa
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
France, Germany, Italy, Venezuela
anderen
Antarctica, Hawaï-eilanden
Hawaï-eilanden, Mid-Atlantische Rug
deposito's in het westen van continenten
Noord Amerika
Canada, Costa Rica, Panama, USA
Canada, USA
Zuid-Amerika
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Not Yet Found
deposito's in Oceanië continent
Australië
Central Australia, Western Australia
Not Yet Found